docs: def verify_appium_is_running(self):
          """Verify that Appium is running so it can be used for local iOS tests."""
          process = Popen(['ps -e | grep "Appium"'], shell=True, stdout=PIPE)
          (grep_output, _grep_error) = process.communicate()
          lines = grep_output.split('\n')
          for line in lines:
              if 'Appium.app' in line:
                  self.stdout.write('Appium is already running')
                  return True
          self.stdout.write('Please launch and configure Appium first')
          return False